"Retro Bob"wrote: (clip) what the load presented by my shoulder to the
object. (clip)
^^^^^^^^^^^^^^
There is a lot more to it than that, and I doubt that you can put together
enough informtion to make the problem solvable. First of all, the mass of
150 lb does not represent a 150# force, except in the special case where the
deceleration is 1 g. Secondly, if your shoulder were to hit a tree limb
(for example) it would stop, but your shoulder does not have 150# mass.
Each part of your body and bicycle would have to be considered as a separate
element, with its own acceleration rate. Then, it would be necessary to sum
up each part of the whole, determining which parts go to your shoulder, and
which parts go to lift the front wheel, or are converted to heat, etc.
Why do you ask? Did this happen? Is the bruise on your shoulder 2 sq in?